Acetylene-gas generator.



No. 656,008. 0 Patented Aug. I 4, |900. T. E. E. BARTLETT.

ACETYLENE GAS GENERATOR.

(Application filed Nov. 18, 1899.)

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No. 656,008. Patented Aug. I4, |900.

T. E. E. BARTLETT.

AcETvLENE GAS GENEnATon. (Application filed Nov. 18, 18S-B.)

(No Model.) 3 Sheets-Sheet 2.

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No. 656,008. Patented Aug. I4, |900.

T. E. E. BARTLETT.

ACETYLENE GAS GENERATUR.

(Application Bled Nov. 18, 1899.) (No Model.) 3-SheetsSheet 3,

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THOMAS EDWARD EVE BARTLETT, OF ATLANTA, GEORGIA.

Nrrsn STATES" PATENT Ormea.

SPECIFICATION forming part of Letters Patent No. 656,008, dated August 14, 1900. Application filed November 18, 1899. Serial No. 737,451. (No model.)

This invention relates particularly toma` chines for generating'a'acetylene gas; and the obgect 1s to provide a gas-machine with a simple means for successively and automatically feeding charges of calcium carbid to the generating-cylinder, and, further, to so construct the machine that the escape of gas into a room will positively be prevented.

I will describe a gas-machine embodying my invention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this speciiication, in which similar characters of reference indicate corresponding parts in all the figures.

' Figure l is a partial elevation and partial section, on the line x of Fig. 3, of a gas-machine embodying my invention. Fig. 2'is a section on the line y y of Fig. 3. Fig. 3 is a plan View. Fig. 4 is a detail,`partly in sec'- tion on the line z e' of Fig. 3, showing an' automatic carbidreleasing mechanism employed; and Fig. 5 is a bottom view of a carbid-holder.

Referring to the drawings, 1 designates the body or stationary Aportion of the gasometer, in which the bell 2 is movable in the usual manner. Extended upward at the center of the body portion 1 of the gasometer is a guidetube 3, which projects above the water-level in the gasometer, and movable in said guidetube is a guide-rod 4, attached to the top' of the bell 2. This rod 4 also extends upward from the top of the bell and is movable through a bearing 5, supported by cross-arms 6, attached to upri'ghts', the lower ends of which are connected to the body portion 1 of the gasometer. By means of these guides it is obvious that the bell will be prevented from' lateral swinging during its vertical move; ments.

Arranged at one side of the body portion 1 is a generating-cylinder 8, designed to hold water for generating gas from the carbid.

This generator 8 has a funnel-shaped bottom Eally-operated blow-off valve 20.

spring.

. taine'dat a desired level.

'9, from which a valve-controlled pipe 10 leads.

This pipe 10 is designed as a discharge-way for sediment or ashes and water. Also leading into the lower portion of the generator is a pipe 11, having a valve 12. This pipe is designed to discharge water into the generator for cleaning'it, as Willbe hereinafter described. A pipe 13 leads from the upper porltion of the generator, and in this pipe are arranged a cut-off Valve 14 and an automatic- The valve 20 is pressed to closed position by means of a (Not shown.) It is designed to be open, however, to allow a blow o of an ex- .cess of gas when the bell 2 becomes filled and moves to its uppermost position. To accomplish this, I employ a lever 21, pivoted to swing on the pipe 13 and engaging with the stem of the valve 20, and from the outer end of this lever 21 a cord or tape 22 extends to a connection with an arm 23, mounted to swing on and extended upward from one of the uprights 7. When the gasometer-bell moves upward to its highest position, an arm 24 on the upper end thereof will engage with lthe arm 23, forcing it upward, and conse- `quently drawing upward on the lever 21 to open the valve 20, permitting the excess of gas to pass out through a pipe 25, which discharges into 4the outer atmosphere-that is, this pipe 25 may lead through the roof or wall of a building or room in which the machine is located. As the amount of gas in the bell decreases and the bell lowers, the spring for the valve 2O will move said valve to its closed position'. A pipe 26 leads downward from the pipe 13,'- the connection with said pipe 13 being between the valves 14 and 20. From the pipe 26 a supply-pipe 27 leads through the wall of :the body portion 1 of the gasometer and extends upward therein to a point above the water-level, and extended fromthe opposite side of the pipe 26 is a burner-'supply pipe28. The water in the generator 8 should be main- Whilegenerating gas, therefore, I provide on one sigde'of the generatora water-gage 29.

Il will-now describe means for successively and automatically feeding charges of calcium carbidto the generator. Arranged at one side of the machine is a double-walled shell 30, having a pipe connection 31 with the gen- IOO erator S. The space between the double walls of the casing 30 is designed to contain water to form a seal for a carbid-holder 32, which has a portion extended downward in the said space, and when this carbid-holder is placed in position it is tightly held by any suitable means. I have here shown latches 33 pivoted to the upper side of the holder 32 and adapted to engage with hooks 34, extended upward from the shell 30. In the upper portion ot the holder 32 is a series of carbid-holding chambers, the several chambers being separated by radially-disposed partitions 35,which terminate at the center in connection with a tube 36. Each chamber 37 formed in the upper portion of the holder is provided with a downwardly-swinging or hinged bottom 33. These swinging bottoms are substantially triangular in outline, with the narrower ends adapted for engagement with the lower end of the tube 36. Extended through the tube 36 and also through a stufling-box 39 is a holding and releasing rod 40. At its lower or inner end the said rod 40 has a segmental horizontally-disposed coil 41. Extended horizontally from the upper or outer portion of the rod 40 are arms 42, the number of arms 42 being equal to the number of chambers 37, and also connected to the upper outer end of said rod 40 is a pulley 43,from which a chain 44 extends around a pulley 45, supported on one of the uprights 7, and at the free end of this chain 44 is a weight 46. Mounted to swing on the upper end of the holder 32 is a stop and releasing lever 47, the outer end of which is provided with a weight 48, and at the inner or opposite end is an upwardly-extended portion 49, adapted to engage with either one of the arms 42 to prevent the rod 40 from being rotated until such time as it shall be desired to rotate the same to discharge a new supply of carbid. The lower end of the pipe 26 communicates with a U-shaped trap 50, designed to contain water to prevent escape of gas and also designed to catch and hold any water of condensation that may pass from the generator with the gas.

In operation the valve 14 is to be opened and the valve 20 of course closed. Then by turning the rod 40 a sufficient distance to disengage its end 41 from one of the swinging bottoms 38 the said bottom will swing downward, as indicated in Fig. 2, permitting a charge of carbid to pass downward through the pipe 31, and thence into the water contained in the generator S. Gas will immediately commence to form and by passing up through the water in the generator will be considerably7 cooled, and from the generator it will pass through the pipes 13, 26, and 27 into the gasometer. Of course a certainamount of gas will pass orthrough the pipe 2S to be consumed at the burners; but as the supply to the burners is much less than the intended supply to the gasometer it is obvious that a greater part of the gas will pass into the gasometer. It may be here stated that the pipe 27 is quite large-say of about two inches in diameter. This will permit a free flow of gas into the gasometer and to a great extent prevent back pressure. Should the gasometerbell become overcharged, the blow-off valve 2O will be operated, in the manner before dcscribed, until the pressure is relieved. When the gas generated from the first charge of carbid shall have passed from the gasometerbell, the gasometer-bell will be in its lowermost position, and while passing to this position an arm 51, attached to the bell, will engage with the upper side of the lever 47, inward of its pivotal point, and by overcoming the power of the weight 48 will bring the part 49 of the lever downward and free it from the arm 42. When the arm is thus released, the weight 46 will rotate the rod 40, causing the end of the coil 41 to pass from or release the swinging bottom of the next chamber of the series, thus permitting a second charge of carbid to pass into the generator. The gas will immediately commence to generate and raise the bell, so as to relieve the pressure of the arm 51 on the lever 47,so that the weight 48 will swing the inner end of said lever upward, to be engaged by the next arm of the series. The rod 40 will be prevented from rotating more than one step at a time by an arm 42 engaging with the arm 51, and as the bell gradually rises the part 49 of the lever 47 will move upward, so as to engage said arm 42 when released by the arm 51. It is to be understood that the movement of the rod 40 to the position permitted by the arm 51 will be suicient to release the swinging bottom of a carbidholder.

When it is desired to clean the generator of sediment or ashes, the valve 12 is to be opened, so that water underpressure may pass through the pipe 11 into the generator.v As the generator lls with water thev gas contained above the water will be forced into the gasometer. Then the valve 14 is to be closed and the valve in the pipe 10 opened, so that by a continued inflow of water from the pipe 11 the generator will be thoroughly cleansed. g

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a gas-machine, a gasometer, a generator, a cylinder having a pipe connection with the generator, a carbid-holder extended into the cylinder, a series of chambers in the upper portion of the holder, a downwardlyswinging bottom for each chamber, a rotary rod for engaging with said bottoms, arms extended radiallyfrom the outer portion of the rod, a locking-lever having an upwardly-extended portion for engaging with the arms and an arm carried by the gasometer-bell for moving the lever out of locking position and also serving as a stop for the rotary rod, substantially as specified.

2. In a gas-machine, a gasometer, a generator arranged at one side thereof and having IOO IXO

a pipe leading into the gasometer, a doublewalled cylinder having a pipe connection with the generator, a carbid-holder having a portion extended between the walls of the cylinder, a series of chambers in the upper portion of the holder, a downwardly-swinging bottom for each chamber, a rod extended vertieally through the upper portion of the holder and having a horizontally-disposed segmental coil at its inner end for engaging With the swinging bottoms, arms extended from the upper or outer portion of said rod, a weighted locking-lever adapted to engage with each of said arms, means for rotating the rod when an arm is released, and an arm carried by the gasometer-bell for releasing said lever from an arm, and also serving as a stop for the rotating rod, substantially as specied.

In witness whereof I have signed my name to this specification in the presence of two .subscribing witnesses.

THOMAS EDWARD EVE BARTLETT. Witnesses: C. H. BROTHERTON,

B. F. DARDEN. 

